/*
 * TransactionManagerMonitorMBean.java    ver   29/nov/2009
 *
 * Copyright (c) 2009 mentalsmash.org
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * The use of the Apache License does not indicate that this project is
 * affiliated with the Apache Software Foundation.
 */
package org.mentalsmash.tazio.transactions.management;

/**
 * Management interface for the TransactionManager
 * 
 * @version 0.0.1 29/nov/2009
 * @author Andrea Reale <andrea.reale@gmail.com>
 * 
 */
public interface TransactionManagerMonitorMBean {

    /**
     * Returns the maximum registered time for a commit operation
     * 
     * @return the maximum registered time for a commit operation
     */
    long getMaxCommitTime();

    /**
     * Returns the minimum registered time for a commit operation
     * 
     * @return the minumum registered time for a commit operation
     */
    long getMinCommitTime();

    /**
     * Returns the average registered time of the last "n" commit operation
     * 
     * @return the average registered time of the last "n" commit operation
     */
    double getAvgCommitTime();
    
    /**
     * Returns the standard deviation of the registered time of the last "n" commit operation
     * 
     * @return the standard deviation of the registered time of the last "n" commit operation
     */
    double getCommitTimeStdDev();
    
    int getNumLocalRollbacks();

}
